[Qt-creator] QtCreator quick save mode?

Oswald Buddenhagen oswald.buddenhagen at qt.io
Mon Sep 26 17:54:07 CEST 2016

On Mon, Sep 26, 2016 at 06:05:05PM +0300, Ursache Vladimir wrote:
> I'm using Btrfs with default settings - is it contemporary enough?
maybe a bit _too_ contemporary - reportedly, it will still occasionally
combust spontaneously. ^^

anyway, the problem of each fsync() causing a complete fs flush existed
with ext3. they supposedly addressed it in ext4, after some rather
substantial improvements to the underlying disk buffering
infrastructure. i don't know to what numbers that translates with
particular filesystem/workload combinations.

if the problem is indeed the serialization with big outstanding writes,
you may be able to improve the situation by configuring the kernel to
flush more aggressively. this will make the system overall a bit slower
and noisier, but it will reduce pronounced lags.

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